<template>
  <div v-throttle="editCropper" class="user-info-head">
    <el-image :src="image" class="img-circle img-lg" />
    <el-dialog
      v-model="open"
      :title="$t('personal.Avatarändern')"
      width="800px"
      append-to-body
      @opened="modalOpened"
      @close="closeDialog"
    >
      <el-row>
        <el-col :xs="24" :md="12" :style="{ height: '350px' }">
          <vue-cropper
            v-if="visible"
            ref="cropper"
            :img="options.img"
            :info="true"
            :auto-crop="options.autoCrop"
            :auto-crop-width="options.autoCropWidth"
            :auto-crop-height="options.autoCropHeight"
            :fixed-box="options.fixedBox"
            :output-type="options.outputType"
            @real-time="realTime"
          />
        </el-col>
        <el-col :xs="24" :md="12" :style="{ height: '350px' }">
          <div class="avatar-upload-preview">
            <img :src="options.previews.url" :style="options.previews.img" />
          </div>
        </el-col>
      </el-row>
      <br />
      <el-row>
        <el-col :lg="2" :md="2">
          <el-upload
            ref="upload"
            action="#"
            :show-file-list="false"
            :before-upload="beforeUpload"
          >
            <el-button>
              {{ $t("personal.Wahl") }}
              <el-icon style="font-weight: bolder; margin-left: 5px">
                <Upload />
              </el-icon>
            </el-button>
          </el-upload>
        </el-col>
        <el-col :lg="{ span: 1, offset: 2 }" :md="2">
          <el-button icon="Plus" @click="changeScale(1)"></el-button>
        </el-col>
        <el-col :lg="{ span: 1, offset: 1 }" :md="2">
          <el-button icon="Minus" @click="changeScale(-1)"></el-button>
        </el-col>
        <el-col :lg="{ span: 1, offset: 1 }" :md="2">
          <el-button icon="RefreshLeft" @click="rotateLeft()"></el-button>
        </el-col>
        <el-col :lg="{ span: 1, offset: 1 }" :md="2">
          <el-button icon="RefreshRight" @click="rotateRight()"></el-button>
        </el-col>
        <el-col :lg="{ span: 2, offset: 6 }" :md="2">
          <el-button type="primary" @click="uploadImg()">
            {{ $t("personal.Absenden") }}</el-button
          >
        </el-col>
      </el-row>
    </el-dialog>
  </div>
</template>

<script setup lang="ts">
import { useUserStore } from "@/store/modules/user";
import SparkMD5 from "spark-md5";
import { UploadRawFile, UploadRequestOptions } from "element-plus";
import { avatar, uploadAvatar } from "@/api/file";
import { VueCropper } from "vue-cropper";
import "vue-cropper/dist/index.css";
const userStore = useUserStore();

const open = ref(false); // 打开预览
const visible = ref(false);

const upload = ref(ElUpload);
const cropper = ref();
const image = ref("");

type Options = {
  img: string | ArrayBuffer | null; // 裁剪图片的地址
  outputType: "png"; // 裁剪生成图片的格式\
  autoCrop: boolean; // 是否默认生成截图框
  autoCropWidth: number; // 默认生成截图框宽度
  autoCropHeight: number; // 默认生成截图框高度
  fixedBox: boolean; // 固定截图框大小 不允许改变
  previews: any; //预览数据
};

//图片裁剪数据
const options: Options = reactive({
  img: image.value, // 裁剪图片的地址
  autoCrop: true, // 是否默认生成截图框
  autoCropWidth: 200, // 默认生成截图框宽度
  autoCropHeight: 200, // 默认生成截图框高度
  fixedBox: true, // 固定截图框大小 不允许改变
  outputType: "png", // 默认生成截图为PNG格式
  previews: {}, //预览数据
});

/** 编辑头像 */
function editCropper() {
  open.value = true;
}
/** 打开弹出层结束时的回调 */
function modalOpened() {
  options.img = image.value;
  visible.value = true;
}
/** 覆盖默认上传行为 */
function requestUpload(
  options: UploadRequestOptions
): XMLHttpRequest | Promise<unknown> {
  return new Promise(() => {});
}
/** 向左旋转 */
function rotateLeft() {
  cropper.value.rotateLeft();
}
/** 向右旋转 */
function rotateRight() {
  cropper.value.rotateRight();
}
/** 图片缩放 */
function changeScale(num: number) {
  num = num || 1;
  cropper.value.changeScale(num);
}
/** 上传预处理 */
function beforeUpload(file: UploadRawFile) {
  if (file.type.indexOf("image/") == -1) {
    // proxy.$modal.msgError("文件格式错误，请上传图片类型,如：JPG，PNG后缀的文件。");
    ElMessage.error("文件格式错误，请上传图片类型,如：JPG，PNG后缀的文件。");
  } else {
    const reader = new FileReader();
    // const spark = new SparkMD5.ArrayBuffer();
    reader.readAsDataURL(file);
    reader.onload = (e) => {
      options.img = reader.result;
    };
  }
}
/** 上传图片 */
function uploadImg() {
  cropper.value.getCropBlob((data: any) => {
    let formData = new FormData();
    formData.append("avatarfile", data);

    const reader = new FileReader();
    const spark = new SparkMD5.ArrayBuffer();

    const file = new File([formData.get("avatarfile")!], "avatar.png");

    reader.readAsArrayBuffer(file);
    reader.onload = (e) => {
      spark.append(reader.result as ArrayBuffer);
      const md5 = spark.end();

      uploadAvatar(file, md5).then((res) => {
        if (res.data) {
          ElMessage.success("上传成功");
          open.value = false;
          userStore.getInfo().then(() => handleQuery());
        }
      });
    };
  });
}

/** 实时预览 */
function realTime(data: any) {
  options.previews = data;
}

/** 关闭窗口 */
function closeDialog() {
  options.img = image.value;
  visible.value = false;
}

/** 初始化信息 */
function handleQuery() {
  avatar().then(({ data }) => {
    image.value = data;
    options.img = image.value;
  });
}

onMounted(() => {
  handleQuery();
});
</script>

<style lang="scss" scoped>
.user-info-head {
  position: relative;
  display: inline-block;
  height: 120px;
}

.user-info-head:hover:after {
  content: "+";
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  bottom: 0;
  color: #eee;
  background: rgba(0, 0, 0, 0.3);
  font-size: 24px;
  font-style: normal;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  cursor: pointer;
  line-height: 120px;
  border-radius: 50%;
}

/* image */
.img-circle {
  border-radius: 50%;
}

.img-lg {
  width: 120px;
  height: 120px;
}

.avatar-upload-preview {
  position: absolute;
  top: 50%;
  transform: translate(50%, -50%);
  width: 200px;
  height: 200px;
  border-radius: 50%;
  box-shadow: 0 0 4px #ccc;
  overflow: hidden;
}
</style>
